2012
DOI: 10.1021/ic3013552
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Long-Range Electron Transfer in Zinc-Phthalocyanine-Oligo(Phenylene-ethynylene)-Based Donor-Bridge-Acceptor Dyads

Abstract: In the context of long-range electron transfer for solar energy conversion, we present the synthesis, photophysical, and computational characterization of two new zinc(II) phthalocyanine oligophenylene-ethynylene based donor-bride-acceptor dyads: ZnPc-OPE-AuP(+) and ZnPc-OPE-C(60). A gold(III) porphyrin and a fullerene has been used as electron accepting moieties, and the results have been compared to a previously reported dyad with a tin(IV) dichloride porphyrin as the electron acceptor (Fortage et al. Chem. … Show more

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Cited by 40 publications
(27 citation statements)
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“…An OPE bridge (comprising three phenyl units) was shown to mediate efficient electron transfer between a donor zinc phthalocyanine and acceptors pyrrolidinoC 60 or gold porphyrin with strong electronic coupling over a distance of >30 Å. [16,17] The excited-state dynamics of systems consisting of a zinc tetraphenylporphyrin and a free base tetraphenylporphyrin bridged by longer OPE units have been investigated using ultrafast spectroscopy. [18] UV-Visible absorption studies on OPE wires terminated with dialkylamino donor and cyano, formyl or nitro acceptor groups showed a competition between the extension of the chromophores and a decrease of the ICT upon increasing the number of PE repeat units.…”
Section: Extensive Studies Have Focused On Covalently-linked Donor-brmentioning
confidence: 99%
“…An OPE bridge (comprising three phenyl units) was shown to mediate efficient electron transfer between a donor zinc phthalocyanine and acceptors pyrrolidinoC 60 or gold porphyrin with strong electronic coupling over a distance of >30 Å. [16,17] The excited-state dynamics of systems consisting of a zinc tetraphenylporphyrin and a free base tetraphenylporphyrin bridged by longer OPE units have been investigated using ultrafast spectroscopy. [18] UV-Visible absorption studies on OPE wires terminated with dialkylamino donor and cyano, formyl or nitro acceptor groups showed a competition between the extension of the chromophores and a decrease of the ICT upon increasing the number of PE repeat units.…”
Section: Extensive Studies Have Focused On Covalently-linked Donor-brmentioning
confidence: 99%
“…Moreover, although the vapor pressure of NE is comparable to that of NM, the quenching efficiency of NE is significantly less because NE molecules have one more -CH 2 -group, which hinders a fast long-range electron transfer between BPNO and NE interactions. 19 Until now, there have been only a few materials reported that could be used for the fluorescence-quenching based vapor detection of NM and NE under ambient conditions, because of their high volatility. 20…”
Section: Preferential Adsorption Of Liquid Nitro Explosive By Mg-mil-53mentioning
confidence: 99%
“…[4,[21][22][23] As expected, it has been shown that both the length and the nature of the linker greatly influence the properties of molecular wire-like electron and energy transfer behavior within these assemblies. [4,14,[24][25][26][27] Previously, we have reported homoleptic Ru II dyads that exhibit long charge-separated state lifetimes resulting from the formation of an excited state comprised of three equilibrating states. [28] We have also reported a series of heteroleptic complexes bearing laminate acceptor ligands that undergo directional photoinduced charge separation to give relatively long lived charge-separated species.…”
Section: Introductionmentioning
confidence: 99%